A5074579845- Bryophyte Studies and Records
- Chromosomal and Genetic Variations
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Genetic diversity and population structure
- Botany and Plant Ecology Studies
- CRISPR and Genetic Engineering
- Animal Genetics and Reproduction
- Plant responses to elevated CO2
- Evolution and Genetic Dynamics
- Epigenetics and DNA Methylation
- Biocrusts and Microbial Ecology
- Yeasts and Rust Fungi Studies
- Insect and Arachnid Ecology and Behavior
- Lichen and fungal ecology
- Hydrology and Sediment Transport Processes
- Atmospheric chemistry and aerosols
- Plant and animal studies
- Coastal wetland ecosystem dynamics
- Genetic Mapping and Diversity in Plants and Animals
- Plant Taxonomy and Phylogenetics
- Ecology and Vegetation Dynamics Studies
- Plant Molecular Biology Research
- Plant Pathogens and Resistance
- Fish Ecology and Management Studies
Michigan State University
2022-2025
University of Michigan
2024
University of Florida
2016-2021
University of Kentucky
2016
Moss sex chromosomes retain thousands of broadly expressed genes despite millions years suppressed recombination.
Chromosomal inversion polymorphisms are ubiquitous across the diversity of diploid organisms and play a significant role in evolution adaptations those species. Inversions thought to operate as supergenes by trapping adaptive alleles at multiple linked loci through suppression recombination. While there is now considerable support for supergene mechanism evolution, extent which inversions trap pre-existing genetic variation versus accumulate new variants over time remains unclear. In this...
Abstract Chromosomal inversion polymorphisms are ubiquitous across the diversity of diploid organisms and play a significant role in evolution adaptations those species. Inversions thought to operate as supergenes by trapping adaptive alleles at multiple linked loci through suppression recombination. While there is now considerable support for supergene mechanism evolution, extent which inversions trap pre-existing genetic variation versus accumulate new variants over time remains unclear....
A central problem in evolutionary biology is to identify the forces that maintain genetic variation for fitness natural populations. Sexual antagonism, which selection favours different variants males and females, can slow transit of a polymorphism through population or actively variation. The amount sexually antagonistic be expected depends part on architecture sexual dimorphism, about we know relatively little. Here, used multivariate quantitative approach examine dimorphism scent-based...
PREMISE OF THE STUDY: Differences in male and female reproductive function can lead to selection for sex‐specific gamete dispersal capture traits. These traits have been explored from shoot whole plant levels wind‐pollinated species. While water‐fertilized species, little is known about how morphology affects capture. We used the dioecious, Bryum argenteum test differences clump water‐holding characteristics consistent with divergent selection. hypothesized that morphology, arising at...
Abstract Non-recombining sex chromosomes, like the mammalian Y, often lose genes and accumulate transposable elements, a process termed degeneration 1,2 . The correlation between suppressed recombination is clear in animal XY systems , but absence of confounded with other asymmetries X Y. In contrast, UV those found bryophytes, experience symmetrical population genetic conditions 3,4 Here we test for bryophyte chromosome system through genomic comparisons new female male chromosome-scale...
Studies of sex chromosomes have played a central role in understanding the consequences suppressed recombination and sex-specific inheritance among several genomic phenomena. However, we argue that these efforts will benefit from more rigorous examination haploid UV chromosome systems, which both female-limited (U) male-limited (V) experience sex-limited inheritance, are transcriptionally active diploid states. We review life cycle differences generate data showing ancient systems evolved...
Studies of sex chromosomes have played a central role in understanding the consequences suppressed recombination and sex-specific inheritance among several genomic phenomena. However, we argue that these efforts will benefit from more rigorous examination haploid UV chromosome systems, which both female-limited (U) male-limited (V) experience sex-limited inheritance, are transcriptionally active diploid states. We review life cycle differences generate data showing ancient systems evolved...
Abstract The maintenance of genetic variation by balancing selection is considerable interest to evolutionary biologists. An important but understudied potential driver antagonistic pleiotropy between diploid and haploid stages the plant life cycle. Despite sharing a common genome, sporophytes (2n) gametophytes (n) may undergo differential or even opposing selection. Theoretical work suggests can generate maintain variation. for far-reaching consequences gametophytic selection, empirical...